Photoemission and x-ray absorption of the electronic structure of multiferroic RMnO3 (R=Y,Er)
SCIE
SCOPUS
- Title
- Photoemission and x-ray absorption of the electronic structure of multiferroic RMnO3 (R=Y,Er)
- Authors
- Kang, JS; Han, SW; Park, JG; Wi, SC; Lee, SS; Kim, G; Song, HJ; Shin, HJ; Jo, W; Min, BI
- Date Issued
- 2005-03
- Publisher
- AMERICAN PHYSICAL SOC
- Abstract
- Electronic structures of multiferroic RMnO3 (R=Y,Er) have been investigated by employing photoemission spectroscopy (PES) and x-ray absorption spectroscopy (XAS). We have found that Mn ions in RMnO3 are in the trivalent high-spin state with the total spin of S=2. The occupied Mn (d(xz)-d(yz)) states lie deep below E-F, while the occupied Mn (d(xy)-d(x)(-y)(2)(2)) states overlap very much with the O 2p states. It is observed that the PES spectral intensity of Mn 3d states is negligible above the occupied O 2p bands, suggesting that YMnO3 is likely to be a charge-transfer insulator. The Mn d(3z)(-r)(2)(2) state is mostly unoccupied in the ferroelectric phase of YMnO3.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/12141
- DOI
- 10.1103/PhysRevB.71.092405
- ISSN
- 1098-0121
- Article Type
- Article
- Citation
- PHYSICAL REVIEW B, vol. 71, no. 9, 2005-03
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